Self tapping anchor



FIG. 1 is a front perspective view illustrating our design of a self tapping anchor.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a left side view thereof.

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines illustrated in FIG. 7 represent features within the hollow head of the self tapping anchor that form no part of the claimed design. 

CLAIM The ornamental design for a self tapping anchor, as shown and described. 